An adjuvant composition for pesticide formulations which...

A - Human Necessities – 01 – N

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A01N 63/00 (2006.01) A01N 25/00 (2006.01) A01N 25/32 (2006.01) A01N 37/36 (2006.01) A01N 57/00 (2006.01)

Patent

CA 2359353

An adjuvant composition for pesticide formulations which exhibits reduced eye irritancy is comprised of a polyoxyalkylene aliphatic amine containing at least about 2 moles of an alkylene oxide group and an eye irritation reducing compound which simultaneously reduces the eye irritation caused by the polyoxyalkylene aliphatic amine and which complexes with metal ions such as calcium and iron which may be present in an aqueous solution of the adjuvant and a pesticide or a plant growth regulator. The eye irritation reducing compound is a carboxylic acid that is capable of complexing with or forming chelates with metal ions in aqueous solution while simultaneously reducing the eye irritation caused by the polyoxyalkylene aliphatic amine. The adjuvant also contains a mixture of polyhydric alcohols and, optionally, a defoamer. The adjuvant is particularly in N-phosphonomethylglycine (glyphosate) herbicidal formulations.

L'invention concerne une composition d'adjuvant pour formulations pesticides dont on a réduit le caractère irritant pour les yeux. Ladite composition comprend une amine aliphatique de polyoxyalkylène renfermant au moins 2 moles environ d'un groupe alkylène-oxyde, un composé de réduction de l'irritation oculaire permettant simultanément de réduire l'irritation oculaire causée par l'amine aliphatique de polyoxyalkylène et de former un complexe avec des ions métaux tels que les ions calcium et fer qui peuvent être présents dans une solution aqueuse de l'adjuvant, et un pesticide ou un régulateur de la croissance des plantes. Le composé de réduction de l'irritation oculaire est un acide carboxylique capable de complexer ou de former des chélates avec les ions métaux en solution aqueuse, et de réduire simultanément l'irritation oculaire causée par l'amine aliphatique polyoxyalkylène. L'adjuvant peut également contenir un mélange de polyalcools, et éventuellement, un agent antimousse. L'adjuvant est utilisé, notamment, dans les formulations herbicides du type N-phosphonométhylglycine (glyphosate).

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